dataset for data mining in excel

Copy codeThe Code is as follows:/Read temporary files GYYW. DA. Common. Base_SqlDataBase daBZDM = new GYYW. DA. Common. Base_SqlDataBase (); DataSet dsBZDM = daBZDM. GetDataSetBySql ("select QCDM, MC, GG from WG_BZDM where QCDM like '200 '"); // Use the Data in the virtual directory as the temporary file directory. String urlPath = HttpContext. Current. Request. ApplicationPath + "/

// Read temporary filesGYYW. DA. Common. Base_SqlDataBase daBZDM = new GYYW. DA. Common. Base_SqlDataBase ();DataSet dsBZDM = daBZDM. GetDataSetBySql ("select QCDM, MC, GG from WG_BZDM where QCDM like '200 '"); // Use the Data in the virtual directory as the temporary file directory.String urlPath = HttpContext. Current. Request. ApplicationPath + "/Data /";Strin

Copy codeThe Code is as follows:/read temporary files GYYW. DA. Common. Base_SqlDataBase daBZDM = new GYYW. DA. Common. Base_SqlDataBase (); DataSet dsBZDM = daBZDM. GetDataSetBySql ("select QCDM, MC, GG from WG_BZDM where QCDM like '200 '"); // Use the Data in the virtual directory as the temporary file directory. String urlPath = HttpContext. Current. Request. ApplicationPath + "/

Export dataset to excel and dataset to excel I found a lot of such code on the Internet. If it weren't for Chinese garbled characters, it would be too complicated. This is the best one I have ever used. // Ds is the data source, filename is the saved file name publicvoidCr

/// /// Export an Excel worksheet to import multiple datatables of a dataset to multiple sheets of an Excel worksheet. /// /// /// /// Public void doexport (Dataset ds, string [] tablenames, string strexcelfilename) { Microsoft. Office. InterOP. Excel. Application

Label: blog HTTP ar SP data Div on 2014 Toxy是继NPOI之后主推的另一个项目，主要目的是为了解决文档的抽取问题，其支持的格式包括所有docx、xlsx、xls、csv、vcard等。下面是一个简单但很有用的例子 ParserContext c=new ParserContext(@"d:\demo.xls");var parser=ParserFactory.CreateSpreadsheet(c);var spreadsheet= parser.Parse();DataSet ds = spreadsheet.ToDataSet();这里就是传说中可以直接把Excel Workbook转换成

Http://hi.baidu.com/smalltube/blog/item/58640e771d5caf1fb151b958.html According to some information on the Internet, I wrote two classes to convert dataset and excel. The Excel COM control must be introduced before use .. Using system;Using system. Data;Using Excel; Namesp

Using System;Using System. Collections. Generic;Using System. ComponentModel;Using System. Data;Using System. Drawing;Using System. Linq;Using System. Text;Using System. Windows. Forms;Using System. Text. RegularExpressions;Using System. IO;Using System. Data. OleDb; Namespace ProCheck{Public partial class Form1: Form{Public Form1 (){InitializeComponent ();ProgressBar1.Visible = false;} Private void button#

Using system;Using system. Data;Using system. Data. oledb;Using system. Windows. forms;Using Microsoft. Office. InterOP. Excel; Namespace ds_excel{/// /// Abstract description of importexporttoexcel./// Public class importexporttoexcel{Private string strconn;Private system. Windows. Forms. openfiledialog openfiledlg = new system. Windows. Forms. openfiledialog

. Net DataSet export to Excel,. netdatasetPublic void CreateExcel (DataSet ds, string typeid, stringFileName) {HttpResponse resp; resp = Page. response; resp. contentEncoding = System. text. encoding. getEncoding ("GB2312"); resp. appendHeader ("Content-Disposition", "attachment; filename =" + FileName); stringcolHeaders = "", ls_item = ""; int I = 0;// Define th

Toxyis the followingNpoiThe main purpose of this project is to solve the problem of extracting documents. Its supported formats include alldocx,xlsx,xls,CSV,vcardand so on. here is a simple but very practical example ParserContext c=new ParserContext (@ "D:\demo.xls"); var parser=parserfactory.createspreadsheet (c); var spreadsheet= Parser. Parse ();D ataset ds = spreadsheet. Todataset ();This is the legend that can directlyExcel Workbookconverted intoDataSetthe code, fantastic bar!he

C # export dataset to excel Cn = new adodb. connectionStr = "provider = microsoft. jet. oledb.4.0; data source =" me. ofdselectexcel. filename "; extended properties =" "excel 8.0; hdr = yes """Cn. open (str)'Get all sheet namesCbsheet. properties. items. clear ()Dim rs1 as new adodb. recordsetRs1 = cn. openschema

TryTen { One da. Fill (DS); A } - Catch(Exception ex) - { the Throw NewException ("failed to read Excel:"+Ex. Message); - } - returnds; -}View CodeException handling:1. If the External table is not in the expected format appears.Most of this is due to the fact that OLE DB or extended properties in the path do not correspond to the current version of th

classImport {/// ///import Excel into the dataset/// /// the file's path and full file name, with extension /// PublicDataSet Exceltodataset (stringstrfilesourse) {DataSet DS=NewDataSet (); //Excel Data source (compatible with 03/10)

Using System;Using System.Collections.Generic;Using System.Data;Using System.Data.OleDb;Using System.Linq;Using System.Text;Using Log;Namespace Common{public class Excelinputhelper{public static Excelinputhelper self = new Excelinputhelper ();public static DataSet Execledataset (String filePath){String OleDbConnection = "provider=microsoft.jet.oledb.4.0;" + "Data source=" + FilePath + "; Extended properties

A while ago, a classmate asked me to analyze two data and a section of Dephi code, he himself has initially implemented the export from the dataset to Excel, but did not implement the line break and the occurrence of the other columns except the first column are missing a row of records. So hopefully I can help. An algorithm that imports multiple product encoding

//读取临时文件GYYW.DA.Common.Base_SqlDataBase daBZDM = new GYYW.DA.Common.Base_SqlDataBase();DataSet dsBZDM = daBZDM.GetDataSetBySql("select QCDM,MC,GG from WG_BZDM where QCDM like ‘02%‘");//同时将虚拟目录下的Data作为临时文件目录。string urlPath = HttpContext.Current.Request.ApplicationPath + "/Data/";string physicPath = HttpContext.Current.Server.MapPath(urlPath);//string fileName = Gu

Copy Code code as follows: /Read Temporary files GYYW.DA.Common.Base_SqlDataBase DABZDM = new GYYW.DA.Common.Base_SqlDataBase (); DataSet DSBZDM = Dabzdm.getdatasetbysql ("Select Qcdm,mc,gg from WG_BZDM where QCDM like ' 2% '"); The data in the virtual directory is also used as the temporary file directory. String URLPath = HttpContext.Current.Request.ApplicationPath + "/

My friend asked me to write the program that just solved the import problem yesterday and completed filtering, sorting, adding, deleting, searching, replacement, and so on. Now I want to export the program. Users can answer and query the information to export the data: The Code is as follows: You must first reference the Excel component. Here, mydata is my dataset